53533439 has 2 divisors, whose sum is σ = 53533440. Its totient is φ = 53533438.

The previous prime is 53533433. The next prime is 53533451. The reversal of 53533439 is 93433535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53533439 - 2²⁰ = 52484863 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53533399 and 53533408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53533433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26766719 + 26766720.

It is an arithmetic number, because the mean of its divisors is an integer number (26766720).

Almost surely, 2^53533439 is an apocalyptic number.

53533439 is a deficient number, since it is larger than the sum of its proper divisors (1).

53533439 is an equidigital number, since it uses as much as digits as its factorization.

53533439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 35.

The square root of 53533439 is about 7316.6549050779. The cubic root of 53533439 is about 376.8845906122.

The spelling of 53533439 in words is "fifty-three million, five hundred thirty-three thousand, four hundred thirty-nine".